Home / 10,665.90-15,998.97-3,270.42

Finding the Fourth Proportional to 10,665.90, 15,998.97 and 3,270.42

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Solution

The fourth proportional to 10,665.90, 15,998.97 and 3,270.42 is: 4,905.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.90 : 15,998.97 = 3,270.42 : x
  2. Step 2: Convert to fraction form
    10,665.90/15,998.97 = 3,270.42/x
  3. Step 3: Cross multiply
    10,665.90x = 15,998.97 × 3,270.42
  4. Step 4: Simplify right side
    10,665.90x = 52,323,351.47
  5. Step 5: Solve for x
    x = 52,323,351.47/10,665.90
  6. Step 6: Final answer
    x = 4,905.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.